Cleaning blade, and cleaning apparatus, process cartridge, and image forming apparatus using the same

Abstract

The present invention provides a cleaning blade for cleaning a surface of an object to be cleaned, comprising: a contact portion that contacts the surface of the object for cleaning, the contact portion being made of a material satisfying the following inequalities (1) to (3): 3.92≦M≦29.42;   (1) 0<α≦0.294; and   (2) S≧250   (3) wherein M denotes 100% modulus (MPa); α denotes the ratio {Δstress/Δstrain degree=(stress at 200% strain degree−stress at 100% strain degreey(200−100)} (MPa/%) of the stress alteration (Δstress) to the strain alteration (Δstrain) in a range of 100%. to 200% strain degree in the stressstrasn cuwve; and S denotes the breaking elongation (%), and a cleaning apparatUs, a process cartridge, and an image forming apparatus comprising the cleaning blade.

Dependencies are inferred from the claim text.